Приказ основних података о документу

dc.creatorVidović, Marija
dc.creatorMorina, Filis
dc.creatorProkić, Ljiljana
dc.creatorMilić-Komić, Sonja
dc.creatorZivanović, Bojana
dc.creatorVeljović-Jovanović, Sonja
dc.date.accessioned2020-12-17T21:36:58Z
dc.date.available2020-12-17T21:36:58Z
dc.date.issued2016
dc.identifier.issn0176-1617
dc.identifier.urihttp://aspace.agrif.bg.ac.rs/handle/123456789/4068
dc.description.abstractIn this study we exposed variegated leaves of Pelargonium zonale to strong sunlight (>1100 mu mol m(-2) s(-1) of photosynthetically active radiation) with and without paraquat (Pq), with the aim to elucidate the mechanisms of H2O2 regulation in green and white tissues with respect to the photosynthetically-dependent generation of reactive oxygen species (ROS). Sunlight induced marked accumulation of H2O2 in the apoplast of vascular and (peri)vascular tissues only in green sectors. This effect was enhanced by the addition of Pq. In the presence of diphenyl iodide, an NADPH oxidase inhibitor, H2O2 accumulation was abolished. Distinct light-induced responses were observed: in photosynthetic cells, sunlight rapidly provoked ascorbate (Asc) biosynthesis and an increase of glutathione reductase (GR) and catalase activities, while in non-photosynthetic cells, early up-regulation of soluble ascorbate peroxidase, dehydroascorbate reductase (DHAR) and GR activities was observed. Paraquat addition stimulated DHAR and GR activities in green sectors, while in white sectors activities of monodehydroascorbate reductase, DHAR and class III peroxidases, as well as Asc content rapidly increased. Differential antioxidative responses in the two tissues in the frame of their contrasting metabolisms, and the possible role of (peri)vascular H2O2 in signaling were discussed.en
dc.publisherElsevier Gmbh, Munich
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/43010/RS//
dc.rightsrestrictedAccess
dc.sourceJournal of Plant Physiology
dc.subjectAbscisic aciden
dc.subjectAscorbate-glutathione cycleen
dc.subjectStrong lighten
dc.subjectHydrogen peroxideen
dc.subjectParaquaten
dc.subjectVariegated plantsen
dc.titleAntioxidative response in variegated Pelargonium zonale leaves and generation of extracellular H2O2 in (peri)vascular tissue induced by sunlight and paraquaten
dc.typearticle
dc.rights.licenseARR
dc.citation.epage39
dc.citation.other206: 25-39
dc.citation.rankM21
dc.citation.spage25
dc.citation.volume206
dc.identifier.doi10.1016/j.jplph.2016.07.017
dc.identifier.scopus2-s2.0-84988719255
dc.identifier.pmid27688091
dc.identifier.wos000389596500003
dc.type.versionpublishedVersion


Документи

Thumbnail

Овај документ се појављује у следећим колекцијама

Приказ основних података о документу